Results 261 to 270 of about 1,077,007 (312)

Impact of Heat Input on Mechanical Properties

Indian Welding Journal, 2017
The mechanical properties of a welded joint significantly depend on the cooling rate of the joint, and this in turn is influenced by the heat input (welding energy), plate thickness and working temperature (interpass temperature). The most significant microstructure changes from the viewpoint of the properties of the weld metal and the heat-affected ...
Juha Lukkari, Olli Vahakainu
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Study of Weldability for Circularly Input Heat

Materials Science Forum, 2008
Different techniques are being studied to make the automotive electrical parts more compact and lightweight; along with improving their functionality for saving energy and protecting the environment. In the wake of this trend, the joints in these parts are required to have little distortion and a high degree of accuracy.
Hideaki Shirai, Shigetaka Okano, Masahito Mochizuki, Masao Toyoda   +3 more
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Comments on "The Heating of Slabs With Arbitrary Heat Inputs"

Journal of the Aerospace Sciences, 1959
^|=0.II9 AT M^oo more closely with the experiment than those of Li and Geiger. This is expected since the effect of curvature is included in the present solution, as was also pointed out by Li and Geiger. The pressure coefficient at r = a has also been computed vs. 6.
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Heat Transfer Studies in Coiled Agitated Vessel with Varying Heat Input

International Journal of Food Engineering, 2011
Heat transfer studies in a coiled agitated vessel with varying heat input is presented using two agitators namely propeller and disk turbine. Heat transfer rate increases with agitator speed for both the agitators for a given heat input. The heat transfer coefficient also increases with heat input for a given agitator speed for turbine agitator for all
V T Perarasu, M Arivazhagan, P Sivashanmugam   +2 more
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Performance of a dehumidifying compression heat pump with auxiliary heat input

Heat Recovery Systems and CHP, 1992
Abstract Experiments are carried out on a R114 dehumidifying heat pump installed in a closed circuit drying tunnel. The influence of auxiliary heat input before condenser and/or evaporator are studied. Actual coefficient of performance varied from about 2 to 3. Studies throw light on the significance of the location of the auxiliary heat input in the
A.M.K. Poduval, S. Srinivasa Murthy
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Comparing anthropogenic heat input and heat accumulation in the subsurface of Osaka, Japan

Science of The Total Environment, 2018
In metropolitan areas, shallow groundwater temperatures are affected by anthropogenic heat sources. The resulting thermal conditions in the subsurface are highly site-specific, and spatial and temporal trends have only been revealed for a few cities.
Susanne A. Benz, Peter Bayer, Philipp Blum, Hideki Hamamoto, Hirotaka Arimoto, Makoto Taniguchi   +5 more
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Heat input properties of hollow cathode arc as a welding heat source

Journal of Physics D: Applied Physics, 2005
In order to clarify whether a hollow cathode arc (HCA) can be used as a welding heat source in space, investigations into the fundamental characteristics of HCA were experimentally performed under low pressure conditions. The HCA method enables an arc discharge to ignite and maintain under low pressure conditions; in contrast, low pressure conditions ...
Hiroshi Nishikawa, Shinichiro Shobako, Masashi Ohta, Takayoshi Ohji   +3 more
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Using Input Estimation to Estimate Heat Source in Nonlinear Heat Conduction Problem

Journal of Thermophysics and Heat Transfer, 2007
The nonlinear heat conduction problem will become more complicated when the thermal conductivity is a quadratic temperature function and the volumetric heat capacity is a linear temperature function. In this paper, the input estimation algorithm, including the extended Kalman filter and the weighted recursive least-squares estimator , is proposed to ...
Tsung-Chien Chen, Chung-Hsin Cheng, Horng-Yuan Jang, Pan-Chio Tuan   +3 more
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Simplified dynamic model for heat input and output of heat storing stoves

Applied Thermal Engineering, 2005
A simplified method to describe the dynamical heat output from heat storing stoves for small houses with a single or several successive firing batches is presented. Both measurements in a stove and theoretical and experimental studies of the combustion of single wood logs can be applied to study the heat input from the batch firing to the furnace walls.
Tuomaala, Pekka, Paloposki, Tuomas, Klobut, Krzysztof, Saastamoinen, Jaakko   +4 more
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In process heat input control in arc welding

Science and Technology of Welding and Joining, 1998
An algorithm for in process optimum heat input control of arc welding is discussed, in which an analytical model of heat conduction is used to evaluate the temperature field during welding and the convex programming method is used in the optimisation of the heat input.
K. Kondoh, T. Ohji
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